Belle II Vertex Detector: Run Performance (PXD + SVD) and Upgrade Developments (VTX)
The Belle II experiment at SuperKEKB continues to pursue high-precision measurements in Standard Model studies and in searches for physics beyond the Standard Model, with a target dataset of 50 ab$^{-1}$ and peak luminosities of $6\times10^{35}$ cm$^{-2}$s$^{-1}$. The current Vertex Detector (VXD), composed of the DEpleted P-channel Field Effect Transistor (DEPFET)-based Pixel Detector (PXD) and double-sided strip-based Silicon Vertex Detector (SVD), has achieved excellent tracking and vertexing performance through Run 1 and Run 2. To address future challenges from increased luminosity and background, a new all-pixel Vertex Detector (VTX) is under development, utilizing radiation-hard DMAPS technology based on the OBELIX sensor. In this contribution, we present the performance of the current VXD system, highlight operational challenges, and present the validation and integration status of the upcoming VTX upgrade.
Authors
- K. Ravindran (ORCID: https://orcid.org/0000-0002-5584-2614)
- S. Giroletti (ORCID: https://orcid.org/0009-0003-8954-7773)
- Y. Onuki (ORCID: https://orcid.org/0000-0002-1646-6847)
- G. Dujany (ORCID: https://orcid.org/0000-0002-1345-8163)
- M. Graf-Schreiber
- L. Federici (ORCID: https://orcid.org/0000-0002-3401-9522)
- Ajit Kumar (ORCID: https://orcid.org/0000-0002-4346-7335)
- Fréderic Morel (ORCID: https://orcid.org/0000-0001-8248-2477)
- J. S. Lange (ORCID: https://orcid.org/0000-0003-0234-0474)
- C. Schwanda (ORCID: https://orcid.org/0000-0003-4844-5028)
- Antonio Alfonso Arcos Álvarez (ORCID: https://orcid.org/0000-0002-7189-5871)
- M. Kaleta (ORCID: https://orcid.org/0000-0002-2863-5476)
- Lodovico Ratti (ORCID: https://orcid.org/0000-0003-1906-1076)
- C. Niebuhr (ORCID: https://orcid.org/0000-0002-4375-9741)
- Y. Han (ORCID: https://orcid.org/0000-0001-6775-5932)
- B. Paschen (ORCID: https://orcid.org/0000-0003-1546-4548)
- A. Ishikawa (ORCID: https://orcid.org/0000-0002-3561-5633)
- M. Krein (ORCID: https://orcid.org/0000-0002-2052-4704)
- W. M. Song (ORCID: https://orcid.org/0000-0003-1376-2293)
- J. Wiechczynski (ORCID: https://orcid.org/0000-0002-3151-6072)
- M. Karagounis (ORCID: https://orcid.org/0000-0003-1886-6411)
- C. Lacasta (ORCID: https://orcid.org/0000-0002-2623-6252)
- P. Pangaud (ORCID: https://orcid.org/0000-0003-1148-9182)
- Jannes Schmitz
- S. Das
- Z. Wang (ORCID: https://orcid.org/0000-0002-3536-4950)
- Y. Buch
- P. Breugnon (ORCID: https://orcid.org/0000-0002-1508-218X)
- L. Gaioni (ORCID: https://orcid.org/0000-0001-5499-7916)
- M. Khan (ORCID: https://orcid.org/0000-0002-2168-0872)
- T. Kuhr (ORCID: https://orcid.org/0000-0001-6251-8049)
- S. Mondal (ORCID: https://orcid.org/0000-0002-3054-8400)
- Z. Doležal
- T. Bilka (ORCID: https://orcid.org/0000-0003-1449-6986)
- S. Stefkova (ORCID: https://orcid.org/0000-0003-2628-530X)
- Thomas Lück
- Zhaoling Zhang
- Anselm Baur
- C. Sfienti
- P. Kodyš (ORCID: https://orcid.org/0000-0002-8644-2349)
- Varsha Gautam
- Wang Boqun
- H. X. Yang (ORCID: https://orcid.org/0009-0003-6527-9110)
- C. Bespin (ORCID: https://orcid.org/0000-0002-5413-1730)
- P. Scholz
- Jian Gong (ORCID: https://orcid.org/0000-0003-1512-4762)
- A. Frey (ORCID: https://orcid.org/0000-0001-7470-3874)
- J. Baudot (ORCID: https://orcid.org/0000-0001-5585-0991)
- Y. Peinaud
- Jasper Kehl
- Lars Schall
- A. Paladino (ORCID: https://orcid.org/0000-0002-3370-259X)
- E. Pérez Trigo (ORCID: https://orcid.org/0000-0001-7650-6639)
- C. Wessel (ORCID: https://orcid.org/0000-0003-0959-4784)
- C. Finck (ORCID: https://orcid.org/0000-0002-5068-5453)
- M. Barbero (ORCID: https://orcid.org/0000-0002-7824-3358)
- Maximilian Babeluk
- F. Buchsteiner
- Christine Hu-Guo
- P. Ahlburg
- M. Bóna (ORCID: https://orcid.org/0000-0002-9660-580X)
- B. Pilsl
- S. Bettarini (ORCID: https://orcid.org/0000-0001-7742-2998)
- M. Ritzert (ORCID: https://orcid.org/0000-0003-2928-7044)
- A. Taffara (ORCID: https://orcid.org/0000-0002-6270-0518)
- G. Rizzo (ORCID: https://orcid.org/0000-0003-1788-2866)
- K. H. Kang (ORCID: https://orcid.org/0000-0002-6816-0751)
- T. Shimasaki (ORCID: https://orcid.org/0000-0003-3291-9532)
- G. Bertolone (ORCID: https://orcid.org/0000-0001-9544-7486)
- A. Gallas Torreira (ORCID: https://orcid.org/0000-0002-2745-7954)
- Christian Koffmane
- T. Kishishita (ORCID: https://orcid.org/0000-0001-9694-6121)
- M. Takahashi (ORCID: https://orcid.org/0000-0003-1171-5960)
- A. E. Bolz (ORCID: https://orcid.org/0000-0002-4033-9223)
- G. Giakoustidis (ORCID: https://orcid.org/0000-0001-5982-1784)
- M. Hoek (ORCID: https://orcid.org/0000-0002-1893-8764)
- I. Ripp-Baudot (ORCID: https://orcid.org/0000-0002-1897-8272)
- J. Bilk
- G. Traversi (ORCID: https://orcid.org/0000-0003-3977-6976)
- N. Wermes (ORCID: https://orcid.org/0000-0001-9971-0077)
- Junaid ur Rehman (ORCID: https://orcid.org/0000-0002-2933-8609)
- P. Stavroulakis (ORCID: https://orcid.org/0000-0001-9914-7261)
- Vidya Sagar Vobbilisetti
- M. Reif (ORCID: https://orcid.org/0000-0002-0706-0247)
- B. Schwenker (ORCID: https://orcid.org/0000-0002-7120-3732)
- L. Cao (ORCID: https://orcid.org/0000-0001-8332-5668)
- Rajendra S. Dhayal (ORCID: https://orcid.org/0000-0002-3157-1047)
- P. Leitl (ORCID: https://orcid.org/0000-0002-1336-9558)
- J. Serrano (ORCID: https://orcid.org/0000-0003-2489-7812)
- Antonio Fernández Prieto (ORCID: https://orcid.org/0000-0003-1984-6367)
- F. Otani
- C. Kiesling (ORCID: https://orcid.org/0000-0002-2209-535X)
- A. Moggi (ORCID: https://orcid.org/0000-0002-2323-8017)
- C. Mariñas (ORCID: https://orcid.org/0000-0003-1903-3251)
- M. Minuti (ORCID: https://orcid.org/0000-0001-9577-2588)
- L. Corona (ORCID: https://orcid.org/0000-0002-2577-9909)
- K. Lalwani (ORCID: https://orcid.org/0000-0002-7294-396X)
- K. R. Nakamura (ORCID: https://orcid.org/0000-0001-7012-7355)
- B. Spruck (ORCID: https://orcid.org/0000-0002-3060-2729)
- P. Kvasnička (ORCID: https://orcid.org/0000-0001-6281-0648)
- Y. Uematsu (ORCID: https://orcid.org/0000-0002-0296-4028)
- E. Riceputi (ORCID: https://orcid.org/0000-0002-0542-553X)
- A. Gabrielli (ORCID: https://orcid.org/0000-0001-7695-0537)
- K. Hara (ORCID: https://orcid.org/0000-0002-5361-1871)
- L. Vitale (ORCID: https://orcid.org/0000-0003-3354-2300)
- F. U. Bernlochner (ORCID: https://orcid.org/0000-0001-8153-2719)
- L. Zani (ORCID: https://orcid.org/0000-0003-4957-805X)
- F. Forti (ORCID: https://orcid.org/0000-0001-6535-7965)
- Marike Schwickardi
- S. Reiter (ORCID: https://orcid.org/0000-0002-6542-9954)
- R. Farkas (ORCID: https://orcid.org/0000-0002-7647-1429)
- M. Massa (ORCID: https://orcid.org/0000-0001-6207-7511)
- F. Becherer (ORCID: https://orcid.org/0000-0003-0562-4616)
- G. B. Mohanty (ORCID: https://orcid.org/0000-0001-6850-7666)
- D. Meleshko (ORCID: https://orcid.org/0000-0002-0872-4623)
- J. Mazzora de Cos
- R. Boudagga
- D. Howgill
- R. Kumar (ORCID: https://orcid.org/0000-0002-6277-2626)
- Qingyuan Liu (ORCID: https://orcid.org/0000-0002-5384-7518)
- B. Gobbo (ORCID: https://orcid.org/0000-0002-3147-4562)
- P. Vázquez Regueiro (ORCID: https://orcid.org/0000-0002-0767-9736)
- Shijie Wang (ORCID: https://orcid.org/0000-0001-6312-3524)
- Hao Yin
- L. Massaccesi (ORCID: https://orcid.org/0000-0003-1762-4699)
- H. Krüger
- V. Lisovskyi (ORCID: https://orcid.org/0000-0003-4451-214X)
- Xu Gao (ORCID: https://orcid.org/0000-0003-4424-5651)
- V. Samuel Raj
- A. J. Bevan (ORCID: https://orcid.org/0000-0002-4105-9629)
- F. Zeng (ORCID: https://orcid.org/0009-0003-6474-3508)
- J. Skorupa (ORCID: https://orcid.org/0000-0002-8566-621X)
- M. Friedl (ORCID: https://orcid.org/0000-0002-7420-2559)
- Denis Fougeron
- Laura Molina-Bueno
- Pierre Barrillon
- Shuji Tanaka
- Wolfgang Kühn
- Hung Pham
- Varghese Babu
- Andrei Dorokhov
- D. Jeans (ORCID: https://orcid.org/0000-0002-5208-7617)
- Abdelkader Himmi
- L. Andricek (ORCID: https://orcid.org/0000-0003-1755-4475)
- Rainer Richter (ORCID: https://orcid.org/0000-0002-5186-9596)
- V. Re (ORCID: https://orcid.org/0000-0003-0697-3420)
- Hans-Günther Moser
- James Frederick Libby
- Jochen Christian Dingfelder
- M. Winter (ORCID: https://orcid.org/0000-0003-4046-9762)
- F. Bosi (ORCID: https://orcid.org/0000-0002-9098-2487)
- G. Casarosa (ORCID: https://orcid.org/0000-0003-4137-938X)
- Richard Thalmeier
- K. Gadow
- Daniel Pitzl
- Y. Okazaki (ORCID: https://orcid.org/0000-0003-2677-5827)
- D. Auguste
- C. Irmler
- T. Higuchi
- M. Vogt (ORCID: https://orcid.org/0000-0002-4620-5576)
- Isabelle Valin
- R. Stever
- Danwei Xu
- J. Bonis
- T. Bergauer (ORCID: https://orcid.org/0000-0002-5786-0293)
- A. Bożek (ORCID: https://orcid.org/0000-0002-5915-1319)
- Z. Natkaniec (ORCID: https://orcid.org/0000-0003-0486-9291)
- M. Maushart (ORCID: https://orcid.org/0009-0004-1020-7299)
- Cheshta Cheshta
- Guglielmo Francesco Benfratello
- Zuzana Gruberov
Publication Details
- Published
- 2025-12-03
- DOI
- https://doi.org/10.22323/1.513.0007
- Primary Topic
- Particle Detector Development and Performance
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Rudi Schulte Research Institute
- Ministerio de Ciencia, Innovación y Universidades
- European Commission
- Department of Science and Technology, Ministry of Science and Technology, India
- Agence Nationale de la Recherche
- Ministry of Education, Culture, Sports, Science and Technology
- Ministerstvo Školství, Mládeže a Tělovýchovy
- Grantová Agentura České Republiky
- Generalitat Valenciana
- Ministerstwo Edukacji i Nauki
- Centre National de la Recherche Scientifique
- Forskningsrådet om Hälsa, Arbetsliv och Välfärd
- Deutsches Elektronen-Synchrotron
- Japan Society for the Promotion of Science
- Institut National de Physique Nucléaire et de Physique des Particules